Scientist
New Scientist puzzle #29: How many strips?
6 November 2019 #29 How many strips? How many 3 x 1 strips, like the example pictured, can be cut out of this piece of wood? Answer next week #28 A well-timed nap Solution Advertisement One hour is 60 minutes for the minute hand, and 1 hour is one-twelfth of a circle (i.e. 30°) for…
6 November 2019
#29 How many strips?
How many 3 x 1 strips, like the example pictured, can be cut out of this piece of wood?
Answer next week
#28 A well-timed nap
Solution
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One hour is 60 minutes for the minute hand, and 1 hour is one-twelfth of a circle (i.e. 30°) for the hour hand. In other words, if the time is “m” minutes past the hour, then the hour hand has travelled through ½m degrees past the hour.
Suppose that when I go to sleep, the angle between the minute and …
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